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    MUD-PULSE TELEMETRY SYSTEM INCLUDING A PULSER FOR TRANSMITTING INFORMATION ALONG A DRILL STRING
    2.
    发明申请
    MUD-PULSE TELEMETRY SYSTEM INCLUDING A PULSER FOR TRANSMITTING INFORMATION ALONG A DRILL STRING 审中-公开

    公开(公告)号：US20180128099A1

    公开(公告)日：2018-05-10

    申请号：US15345380

    申请日：2016-11-07

    Applicant: APS Technology, Inc.

    Inventor： Jason R. Barbely

    IPC: E21B47/16 ,  E21B47/06 ,  E21B47/18

    CPC classification number: E21B47/16 ,  E21B47/06 ,  E21B47/12 ,  E21B47/18 ,  E21B47/182 ,  E21B47/187

    Abstract: A rotary pulser and method is disclosed that includes a housing, a stator supported by the housing, a rotor adjacent to the downhole end of the stator, and a motor assembly coupled to the rotor. A controller may receive a signal that includes drilling information. In response to receiving the signal, the controller causes the motor assembly to rotate the rotor in a first rotational direction through a rotation cycle. The rotation cycle a) rotates the rotor from a first position, where the rotor does not obstruct the at least one passage, into a second position, where the rotor obstructs the at least one passage, and b) rotates the rotor from the second position to a third position in the first rotational direction. Rotation of the rotor generates a pressure pulse in the drilling fluid.

    PRESSURE COMPENSATION DEVICE FOR A FLUID PRESSURE PULSE GENERATING APPARATUS
    3.
    发明申请
    PRESSURE COMPENSATION DEVICE FOR A FLUID PRESSURE PULSE GENERATING APPARATUS 审中-公开

    公开(公告)号：US20180045042A1

    公开(公告)日：2018-02-15

    申请号：US15551546

    申请日：2016-02-16

    Applicant: Evolution Engineering Inc.

    Inventor： Gavin Gaw-Wae Lee ,  Justin C. Logan ,  Aaron W. Logan

    IPC: E21B47/18

    CPC classification number: E21B47/18 ,  E21B47/182

    Abstract: A pressure compensation device for a downhole fluid pressure pulse generator comprising: a membrane sleeve; a membrane support with a bore for receiving a drive-shaft, a central section which receives the membrane sleeve, a male mating section on each side, each having a groove extending around an external surface and at least one opening aligned with the groove; a pair of female mating components with a bore and a channel in an internal surface, each female mating component configured to mate with one of the male mating sections to axially clamp the membrane sleeve between the membrane support and the female mating components; and a pair of retaining rings each received between the male mating section groove and the female mating component channel, where the retaining rings are accessible through the opening in the male mating section and radially expandable into a space in the female mating component to unseat the retaining ring from the groove for removal.

    Compressed telemetry for time series downhole data using variable scaling and grouped words
    5.
    发明授权
    Compressed telemetry for time series downhole data using variable scaling and grouped words 有权

    公开(公告)号：US09784097B2

    公开(公告)日：2017-10-10

    申请号：US14672850

    申请日：2015-03-30

    Applicant: Bryan C. Dugas

    Inventor： Bryan C. Dugas

    IPC: G01V1/40 ,  H03M7/00 ,  E21B47/18

    CPC classification number: E21B47/18 ,  E21B47/182

    Abstract: A method for transmitting data from a downhole location to a location at the surface of the earth includes determining a minimum value and a maximum value of M-samples of data values, determining a keycode for the M-samples of data values that provides an indication of the maximum and minimum values of the M-samples, and encoding the keycode and the data values into one or more encoded words. The one or more encoded words are then transmitted as an acoustic signal in drilling fluid by modulating a mud-pulser. The acoustic signal is received by a transducer uphole from the mud-pulser and converted into an electrical signal. The electrical signal is demodulated into a received encoded word, which is decompressed into the M-samples in accordance with the keycode. The M-samples are then received by a computer processing system disposed as the surface of the earth.

    Method and apparatus for generating pulses in a fluid column
    7.
    发明授权
    Method and apparatus for generating pulses in a fluid column 有权

    公开(公告)号：US09759063B2

    公开(公告)日：2017-09-12

    申请号：US15114721

    申请日：2014-04-04

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Ravi Kiran Kundam ,  Abhay Raghunath Bodake ,  Amitkumar Suresh Rawool

    IPC: E21B47/18 ,  E21B47/00

    CPC classification number: E21B47/18 ,  E21B47/00 ,  E21B47/182

    Abstract: Method and apparatus for generating fluid pulses in a fluid column, such as within a downhole well, are disclosed. A described example fluid pulse generator utilizes a moveable flow conduit through which at least a portion of a downwardly flowing fluid column will pass. The moveable flow conduit can be moved, such as by pivoting, in and out of registry with other components defining the fluid flow path to provide resistance to flow of a selected duration and pattern, and thereby to generate pressure pulses within the fluid column detectable at the surface. In some examples, magnetic actuators will be used to perform the described pivoting of the moveable flow conduit.

    Telemetry system and method of communicating through a tubular
    9.
    发明授权
    Telemetry system and method of communicating through a tubular 有权
    遥测系统和通过管状物进行通信的方法

    公开(公告)号：US09523274B2

    公开(公告)日：2016-12-20

    申请号：US13933735

    申请日：2013-07-02

    Applicant: Thomas J. Zweifel

    Inventor： Thomas J. Zweifel

    IPC: E21B47/12 ,  E21B47/18

    CPC classification number: E21B47/182 ,  E21B47/12

    Abstract: A telemetry system including a tubular. A pump in operable communication with the tubular configured to pump a fluid through the tubular; a flow altering arrangement in operable communication with at least one of the pump and the tubular. A flow interacting detail disposed in the tubular; and a load sensor configured to detect forces imposed on the flow interacting detail due to flow through the flow interacting detail and output signals related to the forces detected. Also included is a method of communicating through a tubular.

    Abstract translation: 包括管状的遥测系统。 与管状件可操作地连通的泵构造成将流体泵送通过管状物; 与泵和管中的至少一个可操作地连通的流动改变装置。 设置在管中的流动相互作用的细节; 以及负载传感器，其被配置为检测由于流过所述流动相互作用细节而引起的流动相互作用细节上的力并输出与所检测到的力相关的输出信号。 还包括通过管状物进行通信的方法。

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